Changes in v3.50
-------------------------
 
 	1. Fixed a bug which caused the recno database variable to be clobbered
	by an  loop.

	2. Fixed a bug which caused Miva to enter an infinite loop when reading
	some xBase memo files.

	3. Fixed a bug which caused an MvDELETE or MvUNDELETE to update the current
	database record, which made indexes get out of sync, and caused "Record
	not in index" errors.

	4. Fixed a bug which caused the documenturl system variable to contain
	the port number when used via an SSL connection on the standard SSL
	port (443).

	5. Added support for the CyberCash Cash Register API.

	6. Added support for HTTP file upload.

	7. A new configuration option, validextensions, has been added.

		validextensions=.mv,.hts

		When defined, Miva will only execute scripts with one
		of the extensions listed.

	8. A new configuration variable, contentbuffersize has been added.

		contentbuffersize configures the buffer size used when reading POST'ed
		FORM data.  The default value is 8192.

	9. The CGI version of Miva will now exit with a timeout error
	when the following signals are received:

		SIGHUP
		SIGINT
		SIGQUIT
		SIGPIPE
		SIGTERM

	10. Variable names posted from an HTML FORM or passed on the URL
	command line are no longer checked for invalid characters.  If
	a variable name contains a character that may not be used in an
	expression (i.e. -, +, *, %, etc..) it can be escaped by prepending
	a backslash.

	11. Added builtin functions to manipulate files in the script directory.
	The following functions are functional equivalents the "f" functions,
	except that they manipulate files in the script directory:

			sexists( path )
			smkdir( path )
			sdelete( path )
			scopy( source, dest )
			srename( source, dest )
			schmod( path, mode )
			ssize( path )
			smode( path )

		The following functions transfer files from the script directory
		to the data directory (functions starting in "sf") or from the
		data directory to the script directory (functions starting in "fs"):

			fscopy( source, dest )
			sfcopy( source, dest )
			fsrename( source, dest )
			sfrename( source, dest )

	12. Two new system variables have been added to allow scripts to deal with
	globaltimeout:

		globaltimeout           Contains the maximum number of seconds that the
					current script may execute
		dyn_time_remaining      Contains the number of seconds that may elapse
					before the current script is terminated

	13. The following builtin functions have been added:

		isalpha( string )
		isupper( string )
		islower( string )
		isdigit( string )
		isxdigit( string )
		isalnum( string )
		isspace( string )
		ispunct( string )
		isprint( string )
		isgraph( string )
		iscntrl( string )
		isascii( string )

	14. The following builtin functions have been added:

		abs( number )
		acos( number )
		asin( number )
		atan( number )
		atan2( x, y )
		ceil( number )
		cos( number )
		cosh( number )
		exp( number )
		floor( number )
		fmod( x, y )
		int( number )
		log( number )
		log10( number )
		sin( number )
		sinh( number )
		sqrt( number )
		tan( number )
		tanh( number )

	15. Two new system variables have been added:

		tm_usec
		dyn_tm_usec

		The variables contain the current microsecond relative to tm_sec/
		dyn_tm_sec.  Note that under Windows, the operating system only
		allows Miva to receive this value in 50-0 increments.

	16. MvDO is now subject to the maxfunctiondepth configuration limit.  This
	prevents MvDO loops from causing a stack overflow.

	17. A new builtin function, miva_getvarlist, has been added.

		miva_getvarlist( scope )

		Returns a comma separated list of variables in the specified scope

	18. Runtime errors may now be controlled on a per-tag basis.

		

		For example:

			

			Would cause all runtime errors generated by MvOPEN to be
			fatal (script execution stops) and displayed (Miva outputs
			the error message).

			

			Would cause all runtime errors generated by MvOPEN to be
			non-fatal (script execution continues) and not to be
			displayed by Miva.